PSLE Shiyun has a number of staplers in three colours: blue, red and brown.
14 of the staplers are blue. The number of blue staplers is twice the number of red staplers. What fraction of the staplers is brown?
Blue |
Red |
Brown |
Total |
1x2 |
3x2 |
4x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
5 u |
8 u |
Number of blue staplers is the repeated identity.
Make the number of blue staplers the same.
LCM of 1 and 2 = 2
Number of brown staplers
= 8 u - 2 u - 1 u
= 5 u
Fraction of the staplers that is brown
=
58 Answer(s):
58